export default {
  parseTime(time, cFormat) {
    if (arguments.length === 0 || !time) {
      return null
    }
    const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
    let date
    if (typeof time === 'object') {
      date = time
    } else {
      if ((typeof time === 'string')) {
        if ((/^[0-9]+$/.test(time))) {
          // support "1548221490638"
          time = parseInt(time)
        } else {
          // support safari
          // https://stackoverflow.com/questions/4310953/invalid-date-in-safari
          time = time.replace(new RegExp(/-/gm), '/')
        }
      }

      if ((typeof time === 'number') && (time.toString().length === 10)) {
        time = time * 1000
      }
      date = new Date(time)
    }

    const formatObj = {
      y: date.getFullYear(),
      m: date.getMonth() + 1,
      d: date.getDate(),
      h: date.getHours(),
      i: date.getMinutes(),
      s: date.getSeconds(),
      a: date.getDay()
    }
    const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
      const value = formatObj[key]
      // Note: getDay() returns 0 on Sunday
      if (key === 'a') {
        return ['日', '一', '二', '三', '四', '五', '六'][value]
      }
      return value.toString().padStart(2, '0')
    })
    return time_str
  },
  formatTime(time, option) {
    if (('' + time).length === 10) {
      time = parseInt(time) * 1000
    } else {
      time = +time
    }
    const d = new Date(time)
    const now = Date.now()

    const diff = (now - d) / 1000

    if (diff < 30) {
      return '刚刚'
    } else if (diff < 3600) {
      // less 1 hour
      return Math.ceil(diff / 60) + '分钟前'
    } else if (diff < 3600 * 24) {
      return Math.ceil(diff / 3600) + '小时前'
    } else if (diff < 3600 * 24 * 2) {
      return '1天前'
    }
    if (option) {
      return parseTime(time, option)
    } else {
      return (
        d.getMonth() +
        1 +
        '月' +
        d.getDate() +
        '日' +
        d.getHours() +
        '时' +
        d.getMinutes() +
        '分'
      )
    }
  },
  formatISOTime(time) {
    let date = new Date(time);
    let year = date.getFullYear();
    let month = padZero(date.getMonth() + 1);
    let day = padZero(date.getDate());
    let hours = padZero(date.getHours());
    let minutes = padZero(date.getMinutes());
    let seconds = padZero(date.getSeconds());
    return year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds;

    function padZero(number) {
      return (number < 10 ? '0' : '') + number;
    }
  },
  param2Obj(url) {
    const search = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ')
    if (!search) {
      return {}
    }
    const obj = {}
    const searchArr = search.split('&')
    searchArr.forEach(v => {
      const index = v.indexOf('=')
      if (index !== -1) {
        const name = v.substring(0, index)
        const val = v.substring(index + 1, v.length)
        obj[name] = val
      }
    })
    return obj
  },

  to_price(x) {
    var f = parseFloat(x);
    if (isNaN(f)) {
      return 0;
    }
    var f1 = x / 100;
    // var f1 = x;
    var f = Math.round(f1 * 100) / 100;
    var s = f.toString();
    var rs = s.indexOf('.');
    if (rs < 0) {
      rs = s.length;
      s += '.';
    }
    while (s.length <= rs + 2) {
      s += '0';
    }
    return s;
  },
  //list to text
  to_text(value, list) {
    for (var i = 0; i !== list.length; ++i) {
      if (list[i].value == value) {
        return list[i].text;
      }
    }
    return "";
  }
}